Patents by Inventor Shili DAI

Shili DAI has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method and active stylus for generating signal, method and touch screen for analyzing signal
    Patent number: 10705627
    Abstract: A method for generating a signal includes: encoding, by an active stylus, transmission information into n-bit q-ary codes; performing, by the active stylus, frequency modulation on the n-bit q-ary codes, respectively, to generate a plurality of encoded frequency-modulated signals; and combining, by the active stylus, a preset fixed-frequency signal for detecting a stylus tip position with the plurality of encoded frequency-modulated signals to form an encoded signal. A method for analyzing a signal, an active stylus, and a touchscreen are also provided. The method for generating a signal, the method for analyzing a signal, the active stylus, and the touchscreen transmit more coding information within a relatively short time, thereby solving a problem of low efficiency of information transmission between an active stylus and a touch screen.
    Type: Grant
    Filed: November 14, 2017
    Date of Patent: July 7, 2020
    Assignee: SHENZHEN GOODIX TECHNOLOGY CO., LTD.
    Inventor: Shili Dai
  • METHOD FOR GENERATING SIGNALS, METHOD FOR ANALYZING SIGNALS, ACTIVE STYLUS, AND TOUCH SCREEN
    Publication number: 20180081457
    Abstract: A method for generating a signal includes: encoding, by an active stylus, transmission information into n-bit q-ary codes; performing, by the active stylus, frequency modulation on the n-bit q-ary codes, respectively, to generate a plurality of encoded frequency-modulated signals; and combining, by the active stylus, a preset fixed-frequency signal for detecting a stylus tip position with the plurality of encoded frequency-modulated signals to form an encoded signal. A method for analyzing a signal, an active stylus, and a touchscreen are also provided. The method for generating a signal, the method for analyzing a signal, the active stylus, and the touchscreen transmit more coding information within a relatively short time, thereby solving a problem of low efficiency of information transmission between an active stylus and a touch screen.
    Type: Application
    Filed: November 14, 2017
    Publication date: March 22, 2018
    Applicant: SHENZHEN GOODIX TECHNOLOGY CO., LTD.
    Inventor: Shili DAI